The EN25QH256A variant of the EN25QH256 doesn't initialize correctly from SFDP
alone and only accesses memory below 8m (addr_width is 4 but read_opcode takes
only 3 bytes).
Set SNOR_F_4B_OPCODES if the flash chip variant was detected using hwcaps.
The fix submitted upstream uses the PARSE_SFDP initializer that is not
available in the kernel used with Openwrt.
Signed-off-by: Leon M. Busch-George <leon@georgemail.eu>
Add support for EON EN25QX128A spi nor flash with no flags as it does
support SFDP parsing.
Fixes: #9442
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Tested-by: Szabolcs Hubai <szab.hu@gmail.com> [ramips/mt7621: xiaomi_mi-router-4a-gigabit]
